Atmospheric abnormality detection alarm system

Details Atmospheric abnormality detection alarm system Atmospheric abnormality detection alarm system

1983-10-27

1986-04-08

Crosland, Donnie L.

Communications: electrical

Condition responsive indicating system

With particular system function

340505, 340518, 340525, 34082506, 34087016, 34087021, G08B 1900

Patent

active

045816042

ABSTRACT:
An atmospheric abnormality detection system includes a command discriminator and a display/alarm circuit in each sensor terminal. When the command discriminator receives a coincidence signal from an address comparator, the command discriminator causes an A/D converter to convert an analog sensor output to a digital signal as response data. When an abnormal state display command is transmitted from a main unit to the command discriminator, the command discriminator causes the display/alarm circuit to display information indicating the abnormal state and/or generate an audible alarm.

REFERENCES:
patent: 3516063 (1970-06-01), Arkin et al.
patent: 4148021 (1979-04-01), Watanabe

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